Abstract:
A system comprising a first network gateway coupled to a circuit-switched network, the first network gateway to initiate a tunnel through the circuit-switched network responsive to packetized fax relay data received from a packet-switched network, and a second network gateway couple to the circuit-switched network, the second network gateway to receive packetized fax relay data through a tunnel over the circuit-switched network from the first network gateway.
Abstract:
A method of transferring images from a first device to a second device and computer program code for performing this method is described. A connection characteristic for a connection between the first & second devices is determined and at least one image is selected from a plurality of images on the first device for transfer dependent upon both the connection characteristic and image selection criteria. The selected image(s) are then transferred over the connection from the first device to the second device.
Abstract:
A computer-implemented method for image adaptation includes accepting a digitally-represented input image and a target size requirement. The input image is modified by optimally determining at least one of a resolution of the input image and a quality of the input image, the quality defining an amount of information allocated to represent each pixel value of the input image, so as to produce a compressed output image meeting the target size requirement.
Abstract:
The invention relates to a method and system for remote visualization and data analysis of graphical data, in particular graphical medical data. A user operates a client machine (21) such as a thin client, a PC, a PDA, etc., and the client machine is connected to a server machine (20) through a computer network. The server machine runs an adaptive streaming module (ASM) which handles the connection between the client and the server. All data and data applications are stored and run on the server. A user at the client side requests data to be shown on the screen of the client, this request (24) is transferred to the server. At the server side the request is interpreted as a request for a particular screen image, and a data application generates the requested screen image and estimates a present available bandwidth (26) of a connection between the client and the server. Based on the estimated available bandwidth, the generated screen image is compressed using a corresponding compression method so that a compressed screen image is formed. The screen image may also be encrypted. The compressed (and possible encrypted) screen image is forwarded (22) to the client, and shown on the screen of the client (23). The compression method depends foremost upon the available bandwidth, however also the type of client machine (28), the type of request, etc. may be taken into account.
Abstract:
The transmission system according to the invention comprises a transmitter (10) and a receiver (14). The receiver (14) comprises storage means (16) for storing content information (13) comprised in the signal (11) received from the transmitter (10). The receiver further comprises control means (18) for controlling the storage means (16) in dependence on storage control information (15) associated with the content information (13), which storage control information (15) is also included in the signal (11). If the signal (11) is transmitted via a network (12), the transmitter (10) is preferably arranged for transmitting the signal (11) in dependence on the load of the network (12). In this way, content information (13) such as data, audio or video, can be transmitted during periods that the network (12) provides sufficient capacity, e.g. during the night.
Abstract:
The invention concerns a method which consists in connecting each fax machine (14, 14') to a direct transmission network (100) and to an economical indirect transmission network (101) and in respectively transmitting the fax from one machine to the other (20) and a notice (21) for transmitting the fax through the indirect transmission network (101) and through the direct transmission network (100). Each fax machine (14, 14') comprises a emitting block for emitting notices for fax transmission and the notified faxes, connected to a direct transmission network (100) and an indirect transmission network (101).
Abstract:
A digital mobile communication system comprises a mobile station (MS) with a facsimile adapter (2), a first telefax terminal (1) connected to the adapter, a mobile network (BSS, MSC), an interworking unit (32) with a second facsimile adapter (33). A high-speedtransparent rate-adapted facsimile connection is set up between the telefax terminals. The number of parallel traffic channels (ch0-chn) allocated to the high-speed data connection is such that the maximum data rate of the data connection is higher than the allowed maximum data rate of the telefax terminals (1, 10). The telefax terminals may negotiate the facsimile data rate. The second facsimile adapter (33) monitors the negociation and selects, on the basis of the negociated facsimile data rate, the most effective channel coding available for the data connection.
Abstract:
A computer device (1) executes a digital picture taking application. The computer device comprises a camera (2) having an optical system (3), an electronic image sensor (4) providing raw image data and image data compressing means (5) compressing the raw image data into a compressed picture data stream (CPS), a display (6), a computing sub- system (7) and a data bus (9) interfacing the computing sub-system (7) with the image data compressing means (5). The image data compressing means (5) generate the compressed picture data stream (CPS) with a variable and externally controllable compression rate. A CPU and bus bandwidth manager (11) monitors the available CPU utilisation and bus bandwidth in dependence on the activities of the computer program applications and allocates bus bandwidth to active computer program applications. Imaging control means (12) control the compression rate of the image data compressing means (5) in dependence on the available bus bandwidth.
Abstract:
The transmission system according to the invention comprises a transmitter (10) and a receiver (14). The receiver (14) comprises storage means (16) for storing content information (13) comprised in the signal (11) received from the transmitter (10). The receiver further comprises control means (18) for controlling the storage means (16) in dependence on storage control information (15) associated with the content information (13), which storage control information (15) is also included in the signal (11). If the signal (11) is transmitted via a network (12), the transmitter (10) is preferably arranged for transmitting the signal (11) in dependence on the load of the network (12). In this way, content information (13) such as data, audio or video, can be transmitted during periods that the network (12) provides sufficient capacity, e.g. during the night.
Abstract:
An apparatus and method for modifying facsimile data transfer rates based upon varying bit rates of a transport medium. The apparatus includes a channel quality monitor (48) adapted to monitor channel quality of an asynchronous link, and a rate modifier (Fig. 3) adapted to dynamically modify a maximum data transfer rate between the original facsimile machine (24) and the terminating facsimile machine (22) in response to the channel quality.